Upright style digital piano



FIG. 1 is a perspective view of an upright style digital piano showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a side elevation view thereof; and

FIG. 5 is a top plan view thereof. 

The ornamental design for a upright style digital piano, as shown. 